Oberton 12B400 12" 400W Lautsprecher 8 Ohm

SPECIFICATIONS  
  
Nominal Diameter  12"/310 inch/mm
Impedance  8 Ohm
Minimum Impedance  6.35 Ohm
Power Capacity AES ¹  400 W
Program Power ²  800 W
Sensitivity  (200-2000 Hz) 98 dB/W/m
Frequency Range  50 - 2500 Hz
Voice Coil Diameter  77 mm
Voice Coil Material  Aluminium
Voice Coil Former  Kapton™
V. C. Winding Depth  15 mm
Magnet Gap Depth  9 mm
Cone Material  Paper
Basket  Die cast aluminium
Magnet  Ferrite
Flux Density  1.33 T
  
THIELE-SMALL PARAMETERS  
  
Fs  50.47 Hz
Qms  25447
Qes  0.256
Qts  0.249
Vas  74.74 Litres
Mms  49.22 grams
Re  5.55 Ohms
Sd  514.7 cm2
Xmax*  ±5.25 mm
Cms  0.202 mm/N
BL   18.40 T.m
Le at 1kHz   0.81 mH
  
MOUNTING INFORMATION  
  
Overall Diameter  311 mm
Baffle Hole Diameter  280 mm
Mounting Holes  8 with dia. 7 mm
Bolt Circle Diameter  294 mm
Overall Depth  144.5 mm
Net Weight  7.25 kg
  
1. AES standard. Power is calculated on rated minimum impedance. Measurement is in 65 L box enclosure tuned 63 Hz using a 40-400 Hz band limited pink noise test signal applied continuously for 2 hours.  
2. Program power is defined as 3db greater than AES Power Capacity.  
  
* Linear Mathematical Xmax is calculated as: (Hvc - Hg)/2 + Hg/4 where Hvc is the voice coil depth and Hg is the gap depth.